11. Graphʼs theory approach for searching the shortest routing path in RIP protocolSaša Klampfer, Amor Chowdhury, Jože Mohorko, Žarko Čučej, 2012, izvirni znanstveni članek Opis: Routing is a problem domain with an infinite number of finalsolutions. One of the possible approaches to solving such problems is using graph theory. This paper presents mathematical analysis methodologies based on circular graphs for solving a shortest path routing problem. The problem is focused on searching for the shortest path within a circular graph. Such a search coincides with the network routing problem domain. In this paper, we introduce in the detail all necessary parts needed to understand such an approach. This includes: definition of the routing problem domain, introduction to circular graphs and their usage, circular graphʼs properties, definition of walks through a circular graph, searching and determining the shortest path within a circular graph, etc. The state of the art routing methods, implemented in contemporary highly sophisticated routers, includes wellknown weightbased algorithms and distancevectorsbased algorithms. The proposed solution can be placed between the two abovementioned methods. Each of these known methods strives for optimal results, but each of them also has its own deficiencies, which should be rectified with the proposed new method. This theoretically presented method is argued by a practical example and compared with the RIP (Routing Information Protocol) technique, where we look for the shortest path and possible walks through a specified circular graph. Ključne besede: circular graphs, shortest path, graph diameter, walk through, CIGRP, connectivity matrix, network topology, symmetry, fully connected graph Objavljeno: 10.07.2015; Ogledov: 754; Prenosov: 28 Celotno besedilo (0,00 KB) Gradivo ima več datotek! Več...

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13. Induction machineBojan Štumberger, Miralem Hadžiselimović, Ivan Zagradišnik, 2013, izvirni znanstveni članek Opis: The aim of this paper is to present the difference of induction machine electromechanical characteristics in motor and generator operating modes. Firstly, the paper presents analytically derived equations, which are based on equivalent circuit and are used for calculation of induction machine breakdown torque. Secondly, a comparison of calculated and measured characteristics in motor and generator operating modes is presented. Results of torque characteristics measurements, temperature rise tests and load tests are also provided. Finally the difference between the calculated and the measured results is commented on and explained in detail. Ključne besede: indukcijski motorji, motorji, generator, meritve Objavljeno: 10.07.2015; Ogledov: 544; Prenosov: 19 Celotno besedilo (0,00 KB) Gradivo ima več datotek! Več...

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